their final medical check, the astronauts boarded their spacecraft．
| A．Received | B．Being received | C．To receive | D．Having received |
Although we had told them not to keep us waiting, they made no _________ to speed up deliveries.
| A．trial | B．attempt | C．action | D．progress |
It rained heavily in the south,serious flooding in several provinces.
| A．caused | B．having caused | C．causing | D．to cause |
Most people are _________ bringing down the price of housing because it’s too high for them.
| A．in honour of | B．in search of | C．in charge of | D．in favour of |
He wondered if he could slip out of the lecture hall without anyone .
| A．noticing | B．noticed | C．to notice | D．being noticed |
Jenny was looking f
or a seat when，luckily，a man and left．
| A．took up | B．got up | C．shut up | D．set up |